alexa Clinical review: Antiandrogens for the treatment of hirsutism: a systematic review and metaanalyses of randomized controlled trials.


Modern Chemistry & Applications

Author(s): Swiglo BA, Cosma M, Flynn DN, Kurtz DM, Labella ML,

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Abstract CONTEXT: The relative efficacy of antiandrogens for the treatment of hirsutism remains unclear. OBJECTIVE: We performed a systematic review and metaanalyses of randomized controlled trials (RCTs) evaluating the effect of antiandrogens on hirsutism. DATA SOURCES: We used librarian-designed search strategies for MEDLINE, EMBASE, and Cochrane CENTRAL (up to May 2006), review of reference lists, and contact with hirsutism experts to identify eligible RCTs. STUDY SELECTION: Eligible studies were RCTs of at least 6 months of antiandrogen use in women with hirsutism. Reviewers, with acceptable chance-adjusted agreement (kappa = 0.72), independently assessed eligibility. DATA EXTRACTION: Reviewers used structured forms to assess and collect methodological quality (allocation concealment, blinding, and loss to follow-up) and study data. DATA SYNTHESIS: Of 348 candidate studies, 12 were eligible (18 comparisons). Their methodological quality was low. Random-effects metaanalyses showed that compared with placebo, antiandrogens reduce Ferriman-Gallwey scores by 3.9 [95\% confidence interval (CI), 2.3-5.4; inconsistency (I(2)) = 0\%]. When compared with metformin, spironolactone reduced hirsutism scores by 1.3 (CI, 0.03-2.6) and flutamide by 5.0 (CI, 3.0-7.0; I(2) = 0\%). For these interventions, two to five women need to receive treatment for one to notice improvement. Spironolactone or finasteride in combination with contraceptives (1.7; CI, 0.1-3.3; I(2) = 0\%) or flutamide with metformin (4.6; CI, 1.3-7.9; I(2) = 40\%) appear superior to monotherapy with contraceptives and metformin, respectively. Only three RCTs reported patient self-assessments of hirsutism. CONCLUSIONS: Weak evidence suggests antiandrogens are mildly effective agents for the treatment of hirsutism. This article was published in J Clin Endocrinol Metab and referenced in Modern Chemistry & Applications

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